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Finding the Fourth Proportional to 402,610.56, 603,540.39 and 136,185.69

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Solution

The fourth proportional to 402,610.56, 603,540.39 and 136,185.69 is: 204,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,610.56 : 603,540.39 = 136,185.69 : x
  2. Step 2: Convert to fraction form
    402,610.56/603,540.39 = 136,185.69/x
  3. Step 3: Cross multiply
    402,610.56x = 603,540.39 × 136,185.69
  4. Step 4: Simplify right side
    402,610.56x = 82,193,564,455.02
  5. Step 5: Solve for x
    x = 82,193,564,455.02/402,610.56
  6. Step 6: Final answer
    x = 204,151.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.